16661:20110408:065813.639 Item [host99:system.cpu.num] error: Get value from agent failed: ZBX_TCP_READ() failed [Interrupted system call]
 16661:20110408:065813.641 Zabbix Host [host99]: another network error, wait for 5 seconds

+--------+--------+-------+------------+-----------------------+--------------------------+
| itemid | status | delay | lastclock  | key_                  | FROM_UNIXTIME(lastclock) |
+--------+--------+-------+------------+-----------------------+--------------------------+
| 813483 |      0 | 86400 | 1302170293 | system.cpu.num        | 2011-04-07 06:58:13      |
| 813511 |      0 | 86400 | 1302170311 | vm.memory.size[total] | 2011-04-07 06:58:31      |
+--------+--------+-------+------------+-----------------------+--------------------------+